Organopolysiloxane-containing graft copolymer composition

Details Organopolysiloxane-containing graft copolymer composition Organopolysiloxane-containing graft copolymer composition

C - Chemistry, Metallurgy

08

L

C08L 51/08 (2006.01) C08K 5/36 (2006.01)

Patent

CA 2559929

Disclosed is a flame retardant resin composition which contains no halogen/phosphorus or less halogen/phosphorus while having excellent flame retardance and impact resistance. Specifically, there is used 100 parts by weight of an organopolysiloxane-containing graft copolymer (A) having a halogen content of not more than 1000 ppm and an alkaline earth metal content of not more than 3000 ppm and 0.02-3.5 parts by weight of an alkali metal salt (B) of a sulfur-containing organic compound, or an organopolysiloxane- containing graft copolymer composition which is characterized by having a halogen content of not more than 1000 ppm and an alkaline earth metal content of not more than 3000 ppm.

On décrit une composition de résine ignifuge qui ne contient aucun halogène/phosphore ou moins d'halogène/phosphore tout en présentant une propriété ignifuge et une résistance à l'impact excellentes. En particulier, on utilise 100 parties en poids d'un copolymère greffé contenant un polysiloxane organique (A) comportant un contenu d~halogène ne dépassant pas 1000 ppm et un contenu de métal alcalinoterreux ne dépassant pas 3000 ppm et de 0,02 à 3,5 parties en poids d'un sel de métal alcalin (B) d'un composé organique contenant du soufre ou d'une composition de copolymères greffés contenant un polysiloxane organique qui est caractérisé en ce qu'il présente un contenu d~halogène ne dépassant pas 1000 ppm et un contenu de métal alcalinoterreux ne dépassant pas 3000 ppm.

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